Corrugated-metal culvert.



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GURRUGMEB METAL @www APPLIGTION FIJED OCTH, i965.

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Specification of Letters Patent. Application filed October v8, 1906. Serial No. 337,989.

- T cir/ZZ whom it may concern/ Beit known that I, CLIFFORD D. Vorne, a citlzen of the United States, residing at Crawfordsville, in the county of Montgomery and. 5 State of Indiana, have invented a new'and useful Corrugated-Metal Culvert, (Case 12s,) of which the following is a specification.

This invention relates Yto sheet-metalculverts of that general class designed for vuse io beneath railway tracks, road-ways'4 and the like or `in the construction of sewers, wellcurbing, conduits and similar' structures.

The object of the invention is to provide a corru ated'sheet-metal culvert formed of a i plura ity of sections vcapable of beinglread-ily united to ermit the formation of culverts of different engths andy which may be compactly assembled for transportation or shipment.

:zo A further object to provide the overlapping ends of the culvert sections with laterally extending flanges havingperforations formed therein for 4the reception of securing bolts.

A still further generally improve this class of devices solas durability and effito increase their utility ciency.l y

With these and other objects in view the invention. consists in the construction and novel combination'and arrangement of parts hereinafter fully described, and illustrated in the accompanying drawings, itbeing understoodthat various changes in form, proportions and minor details of construction may be resortedto within the scope of the appended claims. l

In the accompanying drawings forming a part of this specification: Figure 1. is a side elevation partly in section of a culvert constructed in accordance with my invention. 2 is a transverse sectional view taken cn the line 2-2 of Fig'. 1. nal sectional view illustian i, form of the invention. y Fig. e is a Y 4view illustrating a still. further modification.

Similar numerals ci reference indicate cerresponding parts in all of the figures of the drawings'.

The improved culvert consists of a plurality of sections ofany desired length and each preferably formed of a single sheet of metal orother suitable material bent into a subobject ofthe invention is t0v clamping Patented May 7,

stantially cylindrical shape and'- provided with spaced circumferential corrugations v6.

The corrugations lpreferably terminate short of the adjacent longitudinal edges of the metal forming the culvert' sections so as to permit the metal to be bent upon itself to produce terminal hooks 7 and8 which. interengage and thus form a lap-joint at the juncture of said edges.

rlihemetal en each side 'of the lap-joint rolled, stamped or otherwise pressed laterally to produc-'e longitudinally dfposed stoplribs 9 which bear against the closed ends of the hooks 7 and 8v and `thus serve to preventl 'accidental displacement of thev longitudinal edges of the culvert sections. s The corrugations 6 also terminate vshort of the opposite l "ends of each section thereby to produce terminal bearing collars ,10 and 10 the interior and exterior walls of whichare smooth d unobstructed and adapted to over-lap t corresponding bearing collar of an adjacent 'f f,

section.

Secured to the bearing collars 1() and lll any suitable manner" as by rivets or similar fastening devices 1 1 are angle irons 12 the laterally extending flanges 13' and 14 of which are provided with spaced perforations 15 for `the reception of securing bolts 16. The

flange 13 of one of the angle irons is disposed in alinement with the ladjacent collar 10 while the flange 142 is spaced inwardly on the collar 10 so as to permit the end of the collar 10 to over-lap the collar 10 and thus insure a water-tight joint between the same.

If desired the angle irons 12 instead of extending entirely around the culvert may be formed in short-sections and riveted or other- Wise securedto the interior or exterior walls of the culvert, the result accomplished being the `same in both cases.

in' assembling the sections comprising the i ert the bearing collar of one section is reed within the collar of an adjacent section and said sections forced together until the flange 13 engages the iiange 14 after 'which the bolts 16 are' threaded through the perfcrations in the flanges and secured by the nuts7 as will be readily understood.

ln Fig. 3 of the drawing there is illustrated a modified form of the invention in which the angle irons 17 and 18 are riveted or otherwise secured tothe interiorwalls of the culvert sections, one of said angleirons being substantially T shaped in cross section and the other L shaped.

In Fig. 4 of the drawing the adjacent:I longitudinal edges of the metal forming each' culvert section are secured together by angle irons 19 and 20 similar" in construction to the angle irons l2, the flanges ofthe anglel irons 19 and 2() being pierced by suitable fastemng bolts indicated at 21 so that said sec.- tlons may be readily detached and compactly stored for transportation or shipment.

It will of course be understood that while the short sections of culverts Vfor instance the two'and three foot lengths, may be formed of a single piece of metal the longer sections may be constructed of two or more pieces of metal united in any -suitable manner. l Having thus described the invention what is claimed' is':

1. A culvert comprising a plurality' of'detaehable telescopic sections, leach having its opposite longitudinal edges bent to form terminal interengaging hooks constituting a lapjoint, the metal on each side of the lap-joint .being pressed laterally to. form substantially V shaped longitudinal stop-ribs, flanges permanently secured to and extending laterally icollars, said sections being each formed of a' single piece of metalbentinto substantially cylindricalshape and having its adjacent longitudinal edges provided with interengaging hooks constituting a lap-joint the metal enea-ch side of the la -joint being pressed laterally to form arsugstantially V shaped longitudinal stop-rib, ,flanges permanently secured to the terminal .collars and havingspaced perforations formed therein, andsecuring bolts passing through the perforations in the flanges `for locking 'the sections in alinement with each other. Y

3. A lculvert formed of a plurality of detachable corrugated telescopic sections With posite ends ofthe sections to form bearing collars, a plate permanently secured to one ofthe collars and `provided with a laterally perforated -flange disposed inv alinement "with the" adjacent end of said-collar, a similar plate permanently' securedv to and spaced. i 'n Wardly freni the end'of theopposite collarthe corrugationsterminating short of the op and having its flange provided with perforations adapted to register With the. perforar,

tions in the adjacent flange, and securing bolts passing through said perforations for locking the sections in alinement with each other. Y

.flln testimony that l claim the foregoing as my own, I have hereto aflxed my signature in the presence of two witnesses: K

I CLIFFORD D. YORS.

.BRUCE HAiNi-zs. ROBERT .l-l.. CIsjsnL. 

